Tuesday, May 19, 2020

Re: [MW:30898] Valve Back Seat Test

Good Morning,

seat test and closure test  - Same.

Back seat test - The Gate / Globe valve in full open condition.
The  Stem ( Back seat ) lock the stem bush in the bonnet to avoid leakage.

Shell test - Partial open -  1.5 times design pr 
Back Seat - Full Open    - 1.1 times design pr  
Seat Test - Full close  -     1.1 times design pr 

Best Regards
Kingsly Geo


On Wed, 8 Apr 2020 at 08:20, <rawat.sing@gmail.com> wrote:
What is difference between seat test and closure test.
What is the required position of gate during back seat test.
Regards

Rawat

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